Do gre protocol (all versions.)

Dump: https://yadi.sk/i/aNWwyad1sCHRe

 iptables -A INPUT -p 47 -j DROP

It does not block, tell me how.

  • And what do you mean by "block"? Packages if they go, they still reach your car. and you even see them tcpdump. The fact that the input you cut them will not allow packets to reach your pppd. You need to cut it on the router somewhere on the way to you, if you don't want to see them anywhere else - Mike
  • My channel is big, but it falls from these bug packages. So you need to drop them. - user211989
  • Try to write more detailed questions. Explain exactly what you see the problem, how to reproduce it, what you want to get as a result, etc. - Nicolas Chabanovsky ♦

1 answer 1

whatever you do with these packages on the server , they will still come to you.

and will clog the communication channel.

in such a situation, only filtering of such packets at previous routing points can “save”. for example, your network provider.